barrier-free version
DIC products for Blu-ray Disc
In the market, there are two formats available for Higher Density Optical disc formats - which will be required to record HDTV - , which are Blu-ray Disc and HD-DVD.
DIC has provided some products for Blu-ray Disc which are applicable for two kinds of production processes: Film Bonding method and Spinning method.
Features
- Excellent transmittance for blue laser (400 nm)
- Different viscosity by production process
- For spinning method, extremely low shrinkage on curing
- Designed for Silver reflective layer
Technical Information
| EX-8227 | EX-8226 | EX-741 | ||||
| main design concept | sheet bonding | UV cover coating | hard coat | |||
| viscosity | 260 mPa/s | 3000 mPa/s | 18 mPa/s | |||
| pencil hardness | - | - | 2H | |||
| Modulus at 30°C | 3000 MPa | 900 MPa | 1400 MPa | |||
| Tg | 181 °C | 80 °C | no distinct peak | |||
| Shrinkage on curing | 11.9% | 6.3% | 11,7% | |||
|
Transmittance at 400 nm |
81% (t50μm) |
86% (t100μm) |
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